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InspectionofbearingCleaningofbearingMaintenanceandinspectionMaintenanceandinspectionthelubricant,checkingMaintenanceandinspectionarecarriedouttomain-taingoodperformanceofbearingsinstalledinthemachine.Maintenanceisperformedbycheckingthemachineoperatingconditions,checkingandreplenishingorreplacingthebearingandrelatedpartsbyperiodicdisassemblyandothersuchprocedures.Itemsforinspectionofarunningbearinginamachineincludethebearingtemperature,noise,vibrationandconditionoflubricant.Whenanyabnormalityisfoundduringoperation,thecauseshouldbeinvestigatedandmeasurestakenbyreferringtothesectiononrunningtestonpageA59.Whenremovingabearing,refertothesectionondis-mountingonpageA59.Damage,causesandcorrectiveactionRollingbearingscangenerallybeusedfullyuptotheirrollingfatiguelifeiftheyareproperlyselected,mount-ed,operatedandmaintained.However,theymayactuallybedamagedearlierthantheirexpectedlife-timescreatingproblemsoraccidents.Commoncausesofdamageincludeimpropermountingorhan-dling,insufficientlubricationandpenetrationofforeignparticles.Itmaybedifficulttodeterminetheexactcauseofaproblembycheckingonlythedamagedbearing.Theconditionsofthemachinebeforeandaftertheoccur-renceofthedamage,thelocationandtheoperatingandambientconditionsofthebearing,thestructurearoundthebearing,etc.shouldalsobeexamined.Itthenbecomespossibletoassessthecauseofthedamagebylinkingtheconditionsofthedamagedbearingthemachineoperation,andtopreventtherecurrenceofsimilarproblems.Commontypesofdamage,causesandcorrectiveactionarelistedinTable41.theprobablecausesarisingfromtofirst.isdividedintoroughcleaningandthebearingshouldberecordedWheninspectingabearingafterremoval,theappear-anceofThen,aftertheresidualamountoflubricantischeckedandasampleoflubricantiscollected,thebearingshouldbecleaned.Forcleaning,lightoilorkeroseneiscommonlyused.Cleaningfinalcleaning,andwiregauzeissetasaraisedbottominacontainertopreventthebearingfromtouchingthebot-tomofthecontainer.Lubricatinggreaseandadheringsubstancessuchasforeignparticlesareremovedwithabrush,etc.,usingoilCareshouldbetakenduringthisprocess,becauseifthebearingisturnedwiththeracewaysurfacesmaybescratched.Finalcleaningiscarriedoutbyturningthebearingincleaningoil.Itisdesirablethatthecleaningoiliskeptcleanbythebearingmustbeprotectedagainstcorrosion.Immediatelyaftercleaning,foreignparticlesattached,forroughcleaning.filtering.Inspectionandevaluationofbearingfittingsurfaces,wearconditionofThejudgementastowhethertheremovedbearingisreusabledependsontheinspectionaftercleaning.theracewaysurfaces,rollingelementsConditionsofandthecage,increaseofbearingclearance,dimensions,rotationalaccuracy,etc.shouldbecheckedfordamageandabnormalities.Theevaluationisperformedbasedontheexperiencethedegreeofdamage,takingmachineperformance,themachine,operatingconditions,perioduntilthenextinspection,andothersuchfactors.intoconsiderationimportanceofA61
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